Andreas is a Consultant with Reality Optics Ltd, and he is particularly interested in computational problems in ray and wave optical design. He worked in diffractive optics for over two decades and over a decade in Mixed Reality optics. Before his current position, Andreas worked with many product groups at Microsoft (Surface, HoloLens, Azure, and Kinect), developed micro-confocal endoscopes for surgery at Imperial College, designed space instruments for Mars at Open University, and created the first genuinely holographic display at the University of Cambridge. He obtained his PhD in Optics also from the University of Cambridge, where he is still an Engineering Research Fellow and continues teaching.